About this item [ Height Adjustable Seat for Kids ]: The seat of this 16-inch kids bike can be adjusted from 22.5” to 25” to accompany riders with 41.3”-51.2” height. The quick release lever helps you conveniently lock and loose the seat. The ergonomic seat ensures ultimate comfort. [ 95% Pre-assembled ]: This 95% pre-assembled kids bike comes with assembly tools, making installation a breeze. You should assemble the handlebar with bell, training wheels, pedals, and reflectors. The inseam size is 21.5”-24”. Note: Measure kid’s INSEAM and compare with SADDLE HEIGHT to check if the rider can touch the ground. [ Handbrake & Coaster Brake ]: This kids bicycle features a hand brake and a coaster brake, which allows for your little rider to easily control and stop the bike. Moreover, the fully enclosed chain guard prevents pinching to protect kid’s riding safety. [ Quality Wheels & Sturdy Frame ]: Wear-resistant rubber tires with 2.3”/5.8 cm width offer you a smooth and steady riding experience. It is designed with removable training wheels for beginners to learn to balance and pedal. The stable high carbon steel frame will withstand multiple bumps during riding. [ More Details for Fun & Safety ]: The bike bell provides kids with added fun. Anti-slip pedals ensure safe and effortless pedaling. More importantly, the bike has front and rear reflectors to keep kids visible in low-light conditions to ensure higher safety.